How to Make Seltzer Water

Why spend extra money on bottled seltzer when you can make it at home? Plus, by using fewer plastic bottles, you can reduce your carbon footprint.

Instructions

Step 1: Set up bottle and charger Make sure your seltzer bottle – also called a soda siphon – and charger are compatible. Chargers come in screw-in and snap-on varieties.

TIP: You can also buy a kit that includes both parts; some fit under the kitchen sink.

Step 2: Fill seltzer bottle with water Fill your seltzer bottle with tap water or filtered water according to preference.

Step 3: Load the charger Fit the charger – a small canister containing pressurized carbon dioxide – onto the spray nozzle on the seltzer bottle. When it screws in or snaps on, you'll hear a "whoosh" as the water carbonates.

TIP: You can also use a carbon dioxide tank connected to a plastic two-liter bottle.